Acoustic measurements from eight pre-Cassini Titan IV flights, and an acoustic test of a Cassini simulator and Titan payload fairing (PLF), were used to derive acoustic flight and test criteria for the Cassini spacecraft. The flight and ground test data were used or modified to account for the following factors: (a) noise-spike contamination of flight data, (b) spatial and flight-to-flight variations of flight data, (c) application of a thicker banier-blanket to the PLF for the Cassini mission, (d) effects of locating two Cassini assemblies, the Huygens Probe, and the High Gain Antenna (HGA), near the PLF, and (e) higher thrust of upgraded Titan solid rocket motors (SRMS) for the Cassini mission. An overall sound pressure level (OA SPL) of 145 dB was verified for the protoflight acoustic test criteria for the Cassini spacecraft. Cassini flight liftoff data showed an average OA SPL of 133 dB.


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    Title :

    Derivation of Acoustic Criteria for the Cassini Spacecraft and Comparison with Flight Data


    Contributors:
    H. Himelblau (author) / W. Hughes (author) / A. McNelis (author) / D. Kern (author) / T. Bergen (author)

    Publication date :

    1999


    Size :

    8 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Derivation of Acoustic Criteria for the Cassini Spacecraft and Comparison with Flight Data

    Himelblau, Harry / Hughes, William / McNelis, Anne et al. | NTRS | 1999


    Cassini Spacecraft Acoustic Flight and Test Criteria

    Kern, Dennis L. / Himelblau, Harry / Bergen, Thomas F. | NTRS | 1996


    Development of Acoustic Test Criteria for the Cassini Spacecraft

    Kern, Dennis L. / Himelblau, Harry / Bergen, Thomas F. | NTRS | 1996


    Summary of Cassini Acoustic Criteria Development Using Titan IV Flight Data

    Davis, G. L. / Kern, D. L. / Himelblau, H. | NTRS | 1993